Improvement in waste-water pipes



CONVYER 8L KOONS.

Waste-'Water Pipe.

No. 127,850. f

UNITED STATES PATENT OFFICE;

JESSE CONVER ANDCHARLES B. KOONS, OF PHILADELPHIA, PA.

IMPROVEMENT IN WASTE-WATER PIPES.

Specification forming part of Letters Patent No. 127,850, dated June 11, 1872.

waste-water pipe, and Fig. 2 a transverse section of the same.

The sheet metal of which the pipe A is composed is folded at two points, a a, the fold forming external ribs, without, however, interrupting, to any material extent, the cylindrical interior of the pipe, for the two sides of each fold are in contact with each other at w.

lt is well known that water iows more freely through a cylindrical pipe than through a pipe of any other form; hence the preservation of the interior of our improved pipe in a cylindrical or nearly-cylindrical shape, as shown.

While our improved pipe possesses all the advantages of an ordinary cylindrical pipe as regards thefreeflow of water through the same, it is at liberty, owing to the vpresence of the folds, to expand and accommodate itself to the v ice which accumulates inside the pipe during the severe winter months, and which tends to disrupt ordinary pipes. It Will also be seen that the longitudinal flanges afford a ready means of securing the pipes to the fronts of buildings, staples on which may be arranged to embrace or clutch the anges.

Although we prefer that the pipe should have two folds, a, arranged as shown, it might, in some instances, be constructed with one fold, and in other cases with more than two. Without, therefore, confining ourselves to the number of folds, u' Y We claim- A cylindrical pipe provided with a fold or folds, a, forming longitudinal flanges on the outside of the pipe, as and for the purpose described. v

In testimony whereof` we have signed our names to this specification in the presence of two subscribing witnesses.

JESSE CONVER. CHAS. B. KOON S.

. Witnesses:

WM. A. STEEL, HARRY SMITH. 

